GWM Haval Jolion

Fuel Contamination Remediation Standards

⚠️ GWM Haval Jolion — Moderate misfuel risk

Moderate — confirm petrol filler only; small tank fills quickly if wrong nozzle used.

If the engine was not started

Keep ignition off; drain before the fuel pump runs.

If the engine was started

Replace filters, inspect pump and injectors, flush lines as specified.

⚠️ GWM position — Haval Jolion

GWM prescribes OEM fuel module access or tank removal. Fuel contamination is misuse excluded from factory warranty under NZ policy.

Vehicle information

SpecificationDetails
MakeGWM
ModelHaval Jolion
Market statusSold new in New Zealand 2021–2026
Body stylesPassenger (NZ specification)
GenerationsL.E.M.O.N. (B11)
EnginesPetrol: Petrol engines per NZ specification (91/95/98 RON); Hybrid: Petrol hybrid or PHEV — petrol tank plus high-voltage system
Fuel tank capacity50L
Fuel systemPetrol tank with hybrid system — follow HV safety when servicing
Access methodFuel pump access panel (rear seat or cargo area) — Method A
Anti-siphonLimited or generation-dependent — consult OEM
OEM service portalGWM New Zealand / Haval — authorised dealer service information

OEM access procedure

  1. Do not start the engine. Secure the vehicle and keep ignition off.
  2. Relieve fuel system pressure per OEM service information (fuel pump fuse/relay procedure).
  3. Disconnect the negative battery terminal.
  4. Access the in-tank fuel pump module using the OEM access panel or tank removal method for this model.
  5. Disconnect electrical connector and fuel lines; cap lines to limit vapour release.
  6. Remove the pump lock ring with the specified tool; extract contaminated fuel with approved equipment.
  7. Inspect the tank interior; replace filter and O-rings as specified.
  8. Reassemble, prime the system, check for leaks, and clear fault codes before road test.

Frequently asked questions

What fuel should I use in a Haval Jolion?

Use the grade on the fuel flap and owner manual — typically 91 or 95 octane petrol, or diesel only on diesel variants.

Where is the fuel pump on the Haval Jolion?

Usually under the rear seat or boot floor access panel — see OEM service information.

Need certified fuel contamination service?

Find an NZIFDA certified operator or read consumer guidance on wrong-fuel incidents.

Find an operatorFor consumers